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nessusUbuntu Security Notice (C) 2016-2023 Canonical, Inc. / NASL script (C) 2016-2023 and is owned by Tenable, Inc. or an Affiliate thereof.UBUNTU_USN-3139-1.NASL
HistoryNov 29, 2016 - 12:00 a.m.

Ubuntu 14.04 LTS / 16.04 LTS : Vim vulnerability (USN-3139-1)

2016-11-2900:00:00
Ubuntu Security Notice (C) 2016-2023 Canonical, Inc. / NASL script (C) 2016-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
21

Florian Larysch discovered that the Vim text editor did not properly validate values for the ‘filetype’, ‘syntax’, and ‘keymap’ options. An attacker could trick a user into opening a file with specially crafted modelines and possibly execute arbitrary code with the user’s privileges.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3139-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include('compat.inc');

if (description)
{
  script_id(95386);
  script_version("3.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");

  script_cve_id("CVE-2016-1248");
  script_xref(name:"USN", value:"3139-1");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS : Vim vulnerability (USN-3139-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"Florian Larysch discovered that the Vim text editor did not properly
validate values for the 'filetype', 'syntax', and 'keymap' options. An
attacker could trick a user into opening a file with specially crafted
modelines and possibly execute arbitrary code with the user's
privileges.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-3139-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-1248");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/11/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/11/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/11/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-athena");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-athena-py2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gnome");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gnome-py2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gtk-py2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gtk3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gtk3-py2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gui-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-lesstif");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-nox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-nox-py2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-runtime");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-tiny");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Ubuntu Local Security Checks");

  script_copyright(english:"Ubuntu Security Notice (C) 2016-2023 Canonical, Inc. / NASL script (C) 2016-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('14.04' >< os_release || '16.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04 / 16.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);

var pkgs = [
    {'osver': '14.04', 'pkgname': 'vim', 'pkgver': '2:7.4.052-1ubuntu3.1'},
    {'osver': '14.04', 'pkgname': 'vim-athena', 'pkgver': '2:7.4.052-1ubuntu3.1'},
    {'osver': '14.04', 'pkgname': 'vim-common', 'pkgver': '2:7.4.052-1ubuntu3.1'},
    {'osver': '14.04', 'pkgname': 'vim-gnome', 'pkgver': '2:7.4.052-1ubuntu3.1'},
    {'osver': '14.04', 'pkgname': 'vim-gtk', 'pkgver': '2:7.4.052-1ubuntu3.1'},
    {'osver': '14.04', 'pkgname': 'vim-gui-common', 'pkgver': '2:7.4.052-1ubuntu3.1'},
    {'osver': '14.04', 'pkgname': 'vim-lesstif', 'pkgver': '2:7.4.052-1ubuntu3.1'},
    {'osver': '14.04', 'pkgname': 'vim-nox', 'pkgver': '2:7.4.052-1ubuntu3.1'},
    {'osver': '14.04', 'pkgname': 'vim-runtime', 'pkgver': '2:7.4.052-1ubuntu3.1'},
    {'osver': '14.04', 'pkgname': 'vim-tiny', 'pkgver': '2:7.4.052-1ubuntu3.1'},
    {'osver': '16.04', 'pkgname': 'vim', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-athena', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-athena-py2', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-common', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-gnome', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-gnome-py2', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-gtk', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-gtk-py2', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-gtk3', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-gtk3-py2', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-gui-common', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-nox', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-nox-py2', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-runtime', 'pkgver': '2:7.4.1689-3ubuntu1.2'},
    {'osver': '16.04', 'pkgname': 'vim-tiny', 'pkgver': '2:7.4.1689-3ubuntu1.2'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  if (osver && pkgname && pkgver) {
    if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'vim / vim-athena / vim-athena-py2 / vim-common / vim-gnome / etc');
}